The Importance of Religious Tourism Segmentation for Tourism Destination Management: The Case of the Island of S. Miguel, Azores
Vitor Ambrósio, Rita Peres, Carlos Machado Santos, Antónia Correia
World Review Of Entrepreneurship Management And Sustainable Development, vol. 9, 2013, p. 166-178.

Heterogeneous Technical Efficiency of Hotels in Luanda, Angola
Carlos Pestana Barros, Peter Dieke, Carlos Machado Santos
Tourism Economics, vol. 16, 2010, p. 137-151.

Skewness in Financial Returns: Evidence from the Portuguese Stock Market
Carlos Machado Santos, Ana Cristina Fernandes
Finance A Uver, vol. 55, 2005, p. 460-470.